[ 3765.310323] Running test [R:12680872 T:19 - Networking TCP: keepalive test -  
Kernel: 6.0.0-rc7]                                                               
[-- MARK -- Fri Sep 30 00:45:00 2022] 
[ 3838.791583] device lo entered promiscuous mode                                
[ 3874.902922] device lo left promiscuous mode                                   
[ 3880.473160] device lo entered promiscuous mode                                
[ 3916.675758] device lo left promiscuous mode